Comparison of methods for measuring the tension force of the tractor during soil tillage.

The theoretical part of the diploma thesis deals with soil qualities which influence the soil processing. The soil processing itself is described in the theoretical part as well as advantages and disadvantages of the specific processing, a choice of technology for effective soil processing and economic aspects of the processing. In this part there is an extract describing a test of a tractor pulling and reasons for making the test of pulling in laboratory and field conditions. The practical part of the thesis deals compares two methods of a tractor pulling power during field tests. A belt tractor John Deere 8320 RT and a wheel tractor New Holland T7050 were tested. The target of a pulling test in ter-rain was to define which resistance makes a soil in specific conditions and which pulling power is needed for a certain working output on a given land. The results were pro-cessed and evaluated with computer technology. The whole measurement took place with support of a BEDNAR FMT company